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Bus Guide Hyd Panel

  1. HYDRAULIC Panel

    Can the aircraft be flown with a loss of all hydraulic systems?
    No - you must have at least one hyd system.
  2. HYDRAULIC Panel

    What occurs when you press the RAT MAN ON push button?
    The RAT extends providing pressure to the BLUE hydraulic system.
  3. HYDRAULIC Panel

    Does the PTU transfer hydraulic fluid?
    No
  4. HYDRAULIC Panel

    How many hydraulic pumps are in the GREEN system?
    • 1 Engine
    • 1 PTU
  5. HYDRAULIC Panel

    How many hydraulic pumps are in the BLUE system?
    • 1 Electric
    • 1 RAT
  6. HYDRAULIC Panel

    How many hydraulic pumps are in the YELLOW system?
    • 1 Engine
    • 1 Electric
    • 1 PTU (power transfer unit)
    • 1 (hand pump) by aft cargo door
  7. HYDRAULIC Panel

    When does the BLUE ELEC PUMP normally operate?
    After the first engine is started.
  8. HYDRAULIC Panel

    What is normal system hydraulic pressure?
    3000 + 200 psi
  9. HYDRAULIC Panel

    Does the RAT automatically deploy with the loss of BLUE hydraulic pressure?
    No - it must be deployed manually by the RAT MAN ON pushe button.
  10. HYDRAULIC Panel

    At the gate, if the ACCUM PRESS is low, what should you do?
    Obtain ground clearance then turn the YELLOW ELEC PUMP ON to pressurize the accumulator.
  11. HYDRAULIC Panel

    What condition will cause the PTU to operate when the push button is in AUTO?
    A difference of 500 psi between GREEN and YELLOW hydraulic systems.
  12. HYDRAULIC Panel

    When is the PTU inhibited?
    • PTU push button OFF
    • First Engine Start
    • Parking brake is ON and only one ENG MASTER switch is ON
    • NWS in towing position and parking brake ON
    • Cargo door operation (PTU is also inhibited for 60 seconds after the end of cargo door operation).
  13. HYDRAULIC Panel

    If the ECAM actions lead you to turn OFF the PTU for a Reservoir Overheat, will the FAULT light go out?
    No - not until the overheat subsides.
  14. HYDRAULIC Panel

    If the FAULT light in the PTU push button is ON, are there any other indications on the HYD Panel?
    Yes - the FAULT light will be illuminated in the respective ENG PUMP push button as well.
  15. HYDRAULIC Panel

    Can the YELLOW ELEC PUMP run the PTU?
    Yes
  16. HYDRAULIC Panel

    Does operating the cargo door run the PTU?
    No - the PTU is inhibited during cargo door operation.
  17. HYDRAULIC Panel

    Which systems are not inhibited during cargo door operation?
    • Alternate braking
    • Right Engine reverser
    • Nose wheel steering (if bypass pin is not installed)
  18. HYRAULIC Panel

    Name several items that run from only the GREEN system.
    • Landing Gear
    • Normal brakes
    • Slats & flaps
    • Engine 1 reverse
  19. HYDRAULIC Panel

    Name several items that run from only the YELLOW system.
    • Nose wheel steering
    • Alternate brakes
    • Parking brakes
    • Cargo doors
    • Engine 2 reverser
  20. HYDRAULIC Panel

    What does the amber FAULT light in the PTU push button indicate (OLL)?
    • Overtemp in reservoir
    • Low air pressure in the reservoir
    • Low quantity in the reservoir
  21. HYRDAULIC Panel

    What does an amber FAULT light in the ENG PUMP push button indicate (POLL)?
    • Pump pressure low
    • Overtemp in reservoir
    • Low air pressure in the reservoir
    • Low quantity in the reservoir
  22. HYDRAULIC Panel

    What does a FAULT light in the BLUE or YELLOW ELEC PUMP push button indicate (POLLO)?
    • Pump pressure low
    • Overtemp in reservoir
    • Low air pressure in the reservoir
    • Low quantity in the reservoir
    • Overheat of pump
  23. HYDRAULIC Panel

    Where are the HYD FIRE SHUTOFF VALVES located?
    Between the respective reservoir and the ENG driven pump.
  24. HYDRAULIC Panel

    What is the function of the hydraulic priority valves?
    Hydraulic power to the flaps, slats, landing gear, NW steering and emergency generator is cut off if pressure drops below a predetermined value (items listed are the high demand hyd sys items).
  25. HYDRAULIC Panel

    What is the purpose of the hydraulic hand pump?
    To provide YELLOW hydraulic pressure for cargo door operation.
Author
jsperry843
ID
210869
Card Set
Bus Guide Hyd Panel
Description
Bus Guide Hyd Panel
Updated

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